Tamil Nadu Minerals Limited (TAMIN) (Tamil: தமிழ் நாடு கனிம நிறுவனம் (டாமின்)) is a state-government undertaking of Government of Tamil Nadu located in the Indian state of Tamil Nadu. It is the authority and contractor of granite and stone quarries in Tamil Nadu. TAMIN received the national e-governance award for developing Quarry Management System (QMS) at the 18th national e-governance conference held at Gandhi Nagar in Gujarat 2015.[1]

Highest ever sales from the inception in the year 1979 of the company has been achieved in Black Granite Rs.91.07 Crores, Limestone Rs.28.62 Crores, Graphite Flakes Rs.28.35 Crores, Indian Standard Sand Rs.6.13 Crores and Exfoliated Vermiculite Rs.1.82 crores during 2013-14.[2]